Question 2 : June 2001 | Back |

Examine the diagram below which shows cahnges within a dynamic ecosystem.
a) i) Explain the terms:

                bare inorganic surface;                                                                                                     [2]
                ...........................................................................................................................................................

                ...........................................................................................................................................................

               ............................................................................................................................................................

               climatic climax community;                                                                                               [2]
                ...........................................................................................................................................................

                ...........................................................................................................................................................

                ...........................................................................................................................................................
ii)  Outline two changes in vegetation that take place between the bare inorganic surface and the cliamtic climax community.                                                                                                            [4]

                 1. .......................................................................................................................................................

                  ...........................................................................................................................................................

                  ............................................................................................................................................................

                  ............................................................................................................................................................

                 2 .........................................................................................................................................................

                 .............................................................................................................................................................

                  ............................................................................................................................................................

                  ............................................................................................................................................................
b) Use a plant succession you have studied to describe how physical conditions have influenced its development.                                                                                                                                        [5]

11 lines
 

 
 

 

 

 

 
For later parts of question | click here |